Once out of the earth’s gravity, the astronaut is        by the problem of weigh

Once out of the earth’s gravity, the astronaut is        by the problem of weigh

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Once out of the earth’s gravity, the astronaut is        by the problem of weightlessness.
A.affectedB.effected
C.relatedD.offered

答案
A
解析
句意为“一旦摆脱了地球吸引力,宇航员就受到失重问题的影响。”affect vt. 影响,与句意吻合。
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